/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
  // #include "GUI.h"
  // #include "lcd.h"
#include "digital_display.h"
// #include "key.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
int num=0;
int flag=0;
 void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
  {
    if(GPIO_Pin==GPIO_PIN_1)
    {
      if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_8)==0&&HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==1)
      {
        num++;
      }
      else if(HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_8)==1&&HAL_GPIO_ReadPin(GPIOB,GPIO_PIN_1)==1)
      {
        num--;
      }
    }
    if(GPIO_Pin==GPIO_PIN_4)
    { 
      // if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_4)==0)
      //   {
      //     flag++;
      //   }
      
      int max_lvbo_num=300;
      int lvbo_num=0;
      for(int i=0;i<300;i++)
      {
        if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_4)==0)
        {
          lvbo_num++;
        }
        else
        {
          lvbo_num=0;
        }
      }
      if(lvbo_num > max_lvbo_num-20)
      {
        flag++;
      }
    }
  }
// extern int flag;
/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */
 
  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  /* USER CODE BEGIN 2 */
  // LCD_Init();
  // single_digit_display(1,1);
  // HAL_Delay(500);
  // single_digit_display(2,2);
  // HAL_Delay(500);
  // single_digit_display(3,3);
  // HAL_Delay(500);
  // single_digit_display(4,4);
  //  unsigned char temp_key_num1,key_num2;
  int a=0,b=0,c=0;
  int flag_a_display=0 , flag_b_display=0, flag_c_display=0;    

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  // Show_Str(0,90,GREEN,BLUE,"compute_number",16,1);//居中显示
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
    
    

      if(flag ==1&&flag_a_display == 0)
      {
        a = num;
        flag_a_display = 1;
      }
      else if(flag == 2&&flag_b_display == 0)
      {
        b = num;
        flag_b_display = 1;
      }
      else if(flag == 3&&flag_c_display == 0)
      {
          c = a+b;
          flag_c_display = 1;
      }
/*************************************显示**************************************************/
    if (flag_a_display == 0&&flag_b_display == 0&&flag_c_display == 0)
    {
      digital_display(num);
    }
    else if(flag_a_display ==1 && flag_b_display == 0 && flag_c_display == 0)
    {
      digital_display(num);


    }
    else if(flag_a_display == 1 && flag_b_display == 1 && flag_c_display == 0)
    {

        digital_display(num);
    }
    else if(flag_a_display == 1 && flag_b_display == 1 && flag_c_display == 1)
    {
        digital_display(c);
    } 
    if(flag>3)
    {
      flag = 0;
      num = 0;
      flag_a_display = 0;
      flag_b_display = 0;
      flag_c_display = 0;
    }
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
